resow



No. 620,360-. Patented Feb.-28,1s99. A. nzsow.

GUN CARRIAGE.

- (Application filed Dae. 81. 1897.) (Nnflodlb 2 Sheets-Sheat I,

Inventor.

No. 620,360. Patented Feb. 28, I899. A. RESOW.

- GUN CARRIAGE.

(Application filed. Dec. 31, 1897.)

(No Modal.) I 2 Sheets-Sheet Fig. 3.

the es s: m":

UNIT D STATES ATENT FFICE.

ADOLF RESOW, or ESSEN, GERMANY, ASSIGNOR TO FRI-ED. KRUPP, or SAME PLACE.

G U N-CARRlAG-E.

SPEGIFIGATIONformfiIg'part of Letters l atent' N0.620,36U,'daf d'FbfiiarY28;1899.

Application fil d Decemberiil, 1897. Serial No. 665,063. (No model.)

To aZZ whom it may concern:

Be it known that I, ADOLF RESOW, a citizen of the German Empire, residing at Essen,-

Germany, have invented new and useful Improvements in or Connected-with Gun-Garriages, (for which I have obtained Letters Patent in Germany, No. 98,219, dated April 13, 1897; in Austria,Vol. 47, page 4805, dated November 16, 1897; in France, No. 271,187, dated October 11,1897; in Belgium,No.131,187,

- dated October 11', 1897; in Italy, Reg. Gen.,

vol. XXXIII, No. 46,194, Reg. Att.,Vo1. XC,

No. 169, dated December 31, 1897; in Spain, No. 21,657, dated December 10, 1897; in Sweden, No. 9,122, dated September 27, 1897; in Norway, No. 6,350, dated October 7, 1897; in Denmark, No. 1,777, dated August 25, 1898;

.irLEngland, No. 23,44t5,-dated October '12,

' 1897, and in Switzerland, No. 15,354, dated September 24, 1897,) of which the following is a specification.

In guns which are required to fire quickly it is necessary not only to reduce the recoil as much as possible, but also to allow the gun to have automatically such an amount of running-out movement as will cause it to return wholly or nearly into its original position. The checking of the recoil may be efiected by means of friction, hydraulic brake, springbrake, &c. The automatic running out of the gun may be effected'by means of gravity or even by means of springs.

In the case of a variable nature of the running-surface of thegun'the recoil and also the running out become irregular or non-uniform if the recoil-brake and the running-out apparatus cannot be adjusted to suit the nature of. the said running-surface.

the said gun will have considerably too muchrecoil and too little running-out movement in the caseof soft ground having an inclination to the rear, whereas the same gun will have ment in the case of hard ground having a forward inclination. It is therefore important to be able to regulate the force of the recoilcheck and of the running out movement to suit the nature of the running-surface in order to keep variations from the normal movement within allowable limits. The apparatus hereinafterdescribed is now designed to solve this problem. The drawings illustrate the apparatus in its application to a spur for wheeled gun-carriages of German Patent No. 88,540 of 1895. It can, however, be applied to any other recoil-checking device having a running-out movement.

In the drawings, Figure 1 is a longitudinal section of the apparatus. Fig. 2 is a plan view of Fig. 1. Fig. 3 isv a longitudinal sectional view of the friction-bearing and of part of the trail. Fig. 4 is an end view of the friction-bearing. Fig. 5 is a cross-section of the friction-bearing. Fig. 6 is a detail view of thrust-rod A, Figs. 1 and .5, with its conical feature a little exaggerated.

Similar letters refer to corresponding parts throughout the several views. In Figs. 1 to 5 of the drawings, A is the thrust-bolt, carrying the dish springs which are compressed during recoil by the spur S by means of thehead c of the thrust bolt A, whereby the recoil is checked and the necessary work is stored for running out the gun. 'The thrust-bolt A does not bear with,

too little recoil and too much forward moveits front end in a fixed bearing or support, as

thrust screw f through the medium of an elastic intermediate layer shown in the drawings as consisting of the compression-springs g. In the present arrangement the shank of the thrust-bolt A is conical, and its end nearest-.thehead ,0. ,is thicker than the other end.

motion. of the thrust-bolt.

coil of. the gun the thrust-boltis forcedfon ward-by the spur, the work of recoil is di'm This has for result that according as the shank of the thrust-bolt enters the thrustbearing during the compression of the springs B the brasses-e are forced by the conical shank A apart, andconsequently the comminished by the sum of the work of the springtension and the work of the bolt-friction,

- whereas after the termination of the recoil only the difference between the Work of the spring and the work of friction is available for the purpose of running out the gun.

Therefore the stronger the thrust screw is tightened up the more energetically will the recoil be braked, and also at the same time the running-out movement be decreased in.

1 force. I

The conical form of the shank of the thrust.- bolt, and the thereby resulting Variability-of the friction, enables the difierence between.

the tension of the dish-springs B and the 1 friction-thatis to say, theforcefor running out the gunto be kept within determined limits'in all positions of thspur-that is, at"

all stages of the recoiL'. By tightening the thrust-screwfwithmore or less power thesaid force can'be vvaried very abundantly or within verywide limits, and consequently vcan be adj usted td the -.nature of the surface on which the gun-is-supported i. e., of the running-surfam iofqthe grin-so that in this manner the-recoil and the running-outmovement can .be regulated accordingly.

The action-of the above-described apparatusjs not altered if instead of dish-springs for checking the recoil there be employed another checking force-such, for example, as a hydraulic brake and if instead of a spring-spur for producing the 7 runningout movement In case If during the -re-.

there be employed another force-such, for example, as that of gravity, compressed air, &c. In such cases only the connection of the regulating apparatuswith thebrake is modified.

1. In a recoil apparatus for field-gun carriages, the combination of the brake-spur; the thrust-bolt A having a head 0 engaging the spur and a slotted shank journaled at the for- Ward end in a fixed box D; an adjustable fric- I tion-bearing; a thrust-plate h traversing the slot of the shank of the bolt A and means substantially as described for exerting an-adjustable yielding pressure on the bolt; thereby creating an adjustable degree of friction on the bolt andbetween the surfaces of the slot in the boltand the plate h, substantially as and for the purpose specified.

2. In a recoil apparatus for field-gun carward end ina fixed box D with adjustable brasses c; a thrust-plate h traversingthe slot of the shank 'ofathe bolt A and means substantially as described for exerting an adjust able yielding pressure on the brasses; thereby creating an adjustable degree of friction between the'brasses and'the shank, and also "between the surfaces of the slot and the plate h, substantially as and for the purpose speci- 'riages, the combination of the brakeespur; the r thrust-bolt A having a head 0 'engagi'n g the spur and a slotted shank journaled at the for- 3. In a recoil apparatus for field-gun carthe thrust-bolt A having a head 0 engaging 'thespur, and a conical slotted shank supported atits forward end in conical brasses-e ad- ,e and the bolt, as'wellas between the thrust-.

plate h and the surfaces, is regulated, and the friction in running into battery is decreased, substantiallyas and for the purpose specified. In testimony whereof I have signed m name to this specification in thefpresence of two subscribing witnesses. j

ADOLF RESOW.

Witnesses:

WILLIAM ESSENWEIN, CARL PoHLrr;

l-riages, the combination of the brake-spur S;

"justably securedwithin a brake-box. D with adjusting -sp ring g,",adj ustin g bolt f; and thrust-plate It traversing the slotoi the thrust I bolt, whereby the friction between the brasses 

